Friction drum for autos



`Feb. 7, 1928.

, 1,658,410 R. J. MEYER FRIGTION DRUM FOR AUTOS Original Filed Oct. 26,1.925J

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Patented eb. 7, 1928.

i NrrED STATES PATENT GFFICIE..v

RALPH J'. MEYER, OF DENVER. COLRAIB, ASSIGNOR, BY DIRECT AND MESNE AS-SIGNMENTS, T NATIONAL BRAKE COMPANY, A CORPORATION OF COLORADO.

FRIGTION DRUM FOR AUTOS.

Application led October 26, 19525, Serial No. 64,890. Renewed December27, 1927.

rI`his invention relates to motor vehicle brakes and aims toprovide anovel form of brake constructed in such a way as to eliminate the use ofbrake liners, commonly used in brake constructions.

`Another object of the invention is to pro vide a brake that may bereadilyand easily repaired .and one which may operate ettioiently as abrake.

view which will appear as the description proceeds, the inventionresides in the combination and arrangement of parts and in the detailsof construction hereinafter described and claimed, is being understoodthat changes in the precise embodiment of the invention hereindisclosed, may be made within the scope of what is claimed, Withoutdeparting from the spirit of the invention.

Referring to the drawing: c Figure 1 is an elevational view illustratinga brake constructed in accordance with the invention.

Figure 2 is a vertical sectional view through the device.V

Referring to the drawing in detail, the reference character 5 indicatesa motor vehicle `wheel whichis supplied witha brake con structed inaccordance with the invention.

The brake includes a disk 6 which is bolted to the wheel as by meansofthe bolts 7 that are employed o'r securing the body portion of thewheel to its hub. i y

The reference character 8 indicates the brake drum formed preferably ofwood or viber. However it is to be understood that suitable fibrousmaterialsmay be employed in the construction of the brake drum withoutdeparting fromthe spirit of the invention.

The drum is held in position by means of the bolts 9, there beingprovided a securing ring 10 for securing the drum in such a way as toequally distribute the strain directed to the drum throughout the entiresurface thereof. Cooperating with the drum 8 isan outer brake band 11which is supported at 12, the forward ends thereof being provided withears 13 to which the operating lever 14 is secured, the o eratn leverbeing operated by means o ther 15 that may have connection with theusual brake pedal.

With the foregoing and other objects in' Cooperating within the brakedrum is the brake band 16 or emergency brake, which is provided withenlargements 17 at its ends,

which enlargements are formed with cut out portions to accommodate theenlargements 18 formed on the rod 18 so that as the rod 18 is rotated inone directiomthe sections of the band 16 willbe spread aparttofrictionally engage the drum 8, whereas when Y the rod 18 is moved inthe opposite direction, the band 16 will be permitted to conated by theusual emergency brake lever now From the foregoing it will be seen thatdue to this construction, the brake bands may be forced into engagementwith the drum 8 to set up a binding action therebetween, to retard themovementA of the wheel supporting the brake.

It will further be noted that due tothe construction as shown anddescribed, the drum may be readily and easily removed and replaced whenthe same becomes worn or otherwise rendered inoperative.

1. In a device of the character described, a brake drum supporting disk,a brake drum embodying a circular member. formed of fibrous material,bolts extending through the drum for connectingthe drum to the disk, andbrake bands cooperating with the opposite sides of the drum to brake theWheel tou which the drum is secured.

, 2. In a device of the character described, a brake drum supportincluding a disk, a brake drum comprising a circular wooden member,brake bands cooperating with the brake` drum, and saidbrake bandsadapted to engage the inner' and outer surfaces of the drum.

In testimony that I claim the foregoing as my own, I have hereto aixedmy signature.

RALPH J. MEYER.

